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              <div class="container">
		<p>Main content..</p>
	display 		flex
	flex-flow 	row-reverse wrap
	max-width 	900px
	margin 			auto
	main, aside
		flex 			0 100%
		height 		100px
		background gold
		background cornflowerblue
	@media (min-width: 600px)
			flex: 1 0 0px
			flex: 0 0 200px

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